[OZAPRS] Alpine Rally - APRS & RF conditions

[Richard Hoskin]

Gday,

 

This weekend WICEN Vic is running the Alpine rally in eastern Victoria.

 

WICEN is using VK3REB-1 and VK3RGI-1 as digipeaters for APRS and scoring
data.

 

Due to RF conditions there is a lot of APRS traffic from VK7 and other
areas
of VK3 being seen at the digipeaters. This has the effect of reducing the
available free air time for WICEN operators to use and is causing some
problems for communications in the event.

 

Here is an example of some of the data that is being received at the
digipeaters.

 

1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[11:47:51]

;TRAFFIC  *251159z4106.33S\14555.92E? 59 In 10 Minutes

 

 1:Fm VK7HIL To APAGW Via VK7RAA,VK7RAC,WIDE2* <UI pid=F0 Len=19
>[11:48:08]

>Will @ West Moonah

 

1:Fm VK3MHZ-12 To APT311 Via VK3CV-1,WIDE1,VK7RAA,WIDE2* <UI pid=F0 Len=15
>[12:04:38]

>TinyTrak3 v1.1

 

1:Fm VK3MHZ-12 To 37T8S8 Via VK3CV-1,WIDE1,VK7RVP,WIDE2* <UI pid=F0 Len=13
>[12:05:22]

`IYllSmk/"4V}

 

1:Fm VK7DC To APU25N Via VK7RAC <UI pid=F0 Len=44 >[12:05:54]

}VK2INT-9>SSU2Y8,TCPIP,VK7DC*:`OX_mhk>/"4<}

 

1:Fm VK7DC To APU25N Via VK7RAC* <UI pid=F0 Len=44 >[12:08:31]

}VK2INT-9>SSU2X2,TCPIP,VK7DC*:`NV]mAV>/"4)}

 

 1:Fm VK7HRM-9 To T1P6T5 Via VK7RAC*,WIDE2-2 <UI pid=F0 Len=13 >[12:08:32]

`IJ)l"+R/"6K}

 

1:Fm VK7HIL To APAGW Via VK7RAA*,WIDE2-1 <UI pid=F0 Len=19 >[12:08:03]

>Will @ West Moonah

 

 1:Fm VK7HIL-2 To APAGW Via VK7RAA*,WIDE2-1 <UI pid=F0 Len=75 >[12:08:04]

@251222z4251.35S/14716.65E_099/006g006t067r000P000p000h44b10218 West
Moonah

 

 1:Fm VK7HRM-9 To T1P6T5 Via VK7DC*,WIDE2-2 <UI pid=F0 Len=13 >[12:08:35]

`IJ)l"+R/"6K}

 

1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[12:15:48]

;TRAFFIC  *251227z4106.33S\14555.92E? 66 In 10 Minutes

 

1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[12:17:44]

;TRAFFIC  *251229z4106.33S\14555.92E? 82 In 10 Minutes

 

 1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[12:17:46]

;TRAFFIC  *251229z4106.33S\14555.92E? 82 In 10 Minutes

 

 

No one can easily predict conditions or their effects and it is not the
fault of the operator that his/her data is travelling further than what
would normally be expected.

 

This is however a good example and lessoned that there are no state
boundaries to RF APRS and that we need to work together and cooperate with
each other on common standards and  coordination with APRS.

 

To this extent we should have communicated before this WICEN event with
VK7
and requested that they reduce their APRS traffic levels while the event
is
on.

 

I have stopped all VK3 IGate traffic for the event duration and turned off
VK3RGI-1 as the event is not using it today.

 

I'm asking APRS stations in VK3 and northern VK7 to reduce their APRS RF
transmissions if the are not using the APRS network for a specific purpose
until the WICEN in VK3 finishes at the end of today.

 

Thanks.

 

Cheers

Richard

VK3JFK

 

 

 

 

 

 

 

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